@rootsz:37.52rem;
body{
    background: #F7F7F8;
}
.zhuti{
    padding-bottom: (50/37.52rem);
}
.dibu{
    position: fixed;
    left: 0;
    bottom: 0;
//  height: (49/37.52rem);
    height: (49/@rootsz);
    width: 100%;
    background: pink;
}
